First stage: 1, quadriceps training: supine position, under the knee can be padded with a paper roll, active downward pressure on the knee joint, keep the thigh muscle contraction state for 10 seconds, relaxation, repeat 20 times/group, 3~4 groups/day. 2, ankle dorsiflexion and dorsiflexion exercises: supine position active maximum flexion and extension of the ankle joint and resistance training. The activity of the ankle joint has a significant effect on hemodynamics and is one of the measures to prevent venous thrombosis. When exercising, avoid internal and external rotation of the hip, keep each movement for 10 seconds, repeat 20 times/group, 3~4 groups/day. 3, hip contraction exercise: supine leg extension position, upper limb comfortably placed on the side of the body, contraction of the hip muscles to maintain 10 seconds, relaxation, both hands force to support, to do hip lifting exercise and hold for 10 seconds, repeat 20 times/group, 2~3 groups/day. 4, patella push movement: supine position, push the patella up, down, left, right rotation, repeat 20 times/group, 2~3 groups/day. Second stage: 1, supine straight leg raising exercise (active main, passive supplement): raise within 30°, hold time gradually increased from 15 seconds, 10 times/group, 2~3 groups/day. 2 supine hip flexion exercise: the nurse can support the knee with one hand and the heel with the other, flex the hip (less than 90°) without causing abnormal pain. 10 times/group, 2~3 groups/day. Prohibit internal retraction and internal rotation. 10 times/group, 2~3 groups/day. 3, supine position affected limb abduction exercise: a soft pillow between the two legs, active clamping leg adduction, each action hold 10 seconds, repeat 20 times / group, 2 ~ 3 groups / day. 4.From prone to semi-prone position: elevate the head of the bed < 90°, 30 minutes/repetition, 2~3 times/day. Stage 3: 1, lateral position abduction: turn over with the collaboration of nurses, one hand on the buttocks, one hand on the knee, turn the affected limb and the body to lateral position at the same time, and put pillows between the legs, prohibit internal retraction and internal rotation, 30 min/times,2~3 times/day. 2.Lying position to sitting position: sit up with both hands support, flex the healthy leg and extend the affected leg, use both hands and the healthy leg support to move the affected limb to the position where the calf can naturally hang down on the side of the bed. 3, sitting to standing position point training (crutches, the affected limb is not weight-bearing): the patient moved to the bedside, the healthy leg on the ground, the affected leg touching the ground in front of the affected side of the upper limb crutches, the use of the healthy leg and the hands of the supportive force of the hip to stand. 4, stand to walk training (crutches, walking on the ground, the affected limb gradually weight-bearing): crutches, the healthy leg first forward, followed by the affected leg, crutches, followed by or at the same time, the affected leg from non-weight-bearing to partially weight-bearing. Gradually increase the weight bearing of the affected leg when there is no discomfort, and transition to full weight bearing. Stage 4: 1. The patient practiced squatting under the assistive device to expand the joint mobility. 2. 2, up and down the stairs training upstairs: the healthy leg first on the affected leg, crutches later or at the same time; downstairs: crutches first, the affected leg, the healthy leg last, in order to reduce the affected hip weight-bearing flexion. V. Post-discharge precautions: 1. After discharge, continue the training content learned in the hospital, selective implementation, the number of times and time depends on the specific situation, do not short-term super-intensity training, should not cause pain to the extent that the pain should be appropriate to reduce the amount of pain. 2, 4 weeks after surgery walker, crutches walking, 4 ~ 12 weeks can walk with one cane, 3 months can be simple activities. Such as walking, slow walking, swimming and so on. In the afternoon, the affected limb can be elevated for 1 hour to reduce the edema caused by walking in the morning. 3, 6 weeks after surgery, 6 do not: do not cross your legs; do not lie on the affected side, between the knees should be put a soft pillow; do not sit on the sofa or low chair; do not lean forward when sitting; do not bend over to pick up things; do not sit on the bed with bent knees. 4, full recovery can be carried out after sports activities: walking, gardening, cycling, bowling, table tennis, swimming, dancing and so on. And maintain proper weight, avoid excessive pressure on the new hip to cause wear and tear activities, such as jumping, running, skating, tennis, etc..